English

Exact solutions for mass-dependent irreversible aggregations

Data Analysis, Statistics and Probability 2011-11-02 v1 Disordered Systems and Neural Networks

Abstract

We consider the mass-dependent aggregation process (k+1)X -> X, given a fixed number of unit mass particles in the initial state. One cluster is chosen proportional to its mass and is merged into one either with k-neighbors in one dimension, or -- in the well-mixed case -- with k other clusters picked randomly. We find the same combinatorial exact solutions for the probability to find any given configuration of particles on a ring or line, and in the well-mixed case. The mass distribution of a single cluster exhibits scaling laws and the finite size scaling form is given. The relation to the classical sum kernel of irreversible aggregation is discussed.

Keywords

Cite

@article{arxiv.1109.0045,
  title  = {Exact solutions for mass-dependent irreversible aggregations},
  author = {Seung-Woo Son and Claire Christensen and Golnoosh Bizhani and Peter Grassberger and Maya Paczuski},
  journal= {arXiv preprint arXiv:1109.0045},
  year   = {2011}
}

Comments

4 pages, 4 figures

R2 v1 2026-06-21T18:58:06.085Z